ALSA: snd-usb-caiaq: clean up header includes

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/caiaq/caiaq-audio.c b/sound/usb/caiaq/caiaq-audio.c
index 08d51e0..cf37331 100644
--- a/sound/usb/caiaq/caiaq-audio.c
+++ b/sound/usb/caiaq/caiaq-audio.c
@@ -16,17 +16,11 @@
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */
 
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/interrupt.h>
-#include <linux/usb.h>
 #include <linux/spinlock.h>
+#include <linux/init.h>
+#include <linux/usb.h>
 #include <sound/core.h>
-#include <sound/initval.h>
 #include <sound/pcm.h>
-#include <sound/rawmidi.h>
-#include <linux/input.h>
 
 #include "caiaq-device.h"
 #include "caiaq-audio.h"